The mouse and touchpad or trackpad are input devices used as pointing devices. Both devices achieve the same objectives of pointing, selecting, and moving the cursor among other functions of the pointing device. However, they have some differences in how they look and operate to achieve their function. The main difference between a computer mouse…
The magnetic disk uses magnetic technology to read and write bits of data while the optical disk uses light beams. Both disks are used as secondary storage devices where they are used to store user data for future reference. The main difference between the two types of disks is how they record data and the…
The supercomputer and standard personal computers have some characteristics that are the same and many others that are different. We discuss what is different and in which way and later we check some of the similarities between the 2 classes of computers. You can read a more detailed article here on supercomputers. The main difference…
Fiber optic cables are the latest data transmission media. They are also the fastest type of media. The name optic means the use of light transmitted through the cable. Data to be transmitted is converted from electrical signals that the computer produces into light signals by a light-emitting diode to be transmitted along the cable…
A computer power supply unit (PSU) is a hardware component of a computer that supplies all components with electrical power. It connects the computer system unit to the power wall socket. From the power unit, the energy is distributed to other components by the use of power connectors. The main types of power supply form…
Optical disks are cheap secondary storage disk that uses light to read or write data. They are non-volatile storage devices that are mostly used for data backup. The main types of optical disks are CDs, DVDs, and Blu-ray among others. They are used for bootable disks, packaging device drivers, movies, MP3 storage, and computer video…
The computer input devices are used to enter data into a computer from different sources the data is then processed by the computer. Data can be entered by keying, scanning, recording, pointing, touching, and other modes of data entry. Input devices are found in all computing devices. Input devices are used to enter data either…
A digital Camera is an electronic device that uses optical sensors to capture images and sometimes video into digital data. A digital camera is an input device since it captures physical object and converts it into digital data as input. It captures the image and saves them in pixels which determines the quality and clarity…
The computer processor or Central Processing Unit (CPU) is termed the brain of the computer. It is the main component of any computing device that is available. It is usually made of microelectronic components fixed in a microchip. The main function of the computer processor is to execute instructions and give the required output results….
An expansion slot is a connection point with a computer motherboard where an additional component can be added to the computer. Modern computers are designed in a manner that users can add extra functionality when the need arises. The expansion slots type range from PCI, PCI Express, AGP, ISA, CPU, and RAM slots among others….